Translation guide
A form of government with a monarch at the head. In Japanese, the concept is expressed through specific terms for the system, the monarch, and related ideas. The most common and direct translation is 君主制 (くんしゅせい).
Referring to the political system where a monarch is the head of state.
The standard term for monarchy as a system of government. Used in political and historical contexts.
The United Kingdom is a constitutional monarchy.
Refers to a country that is a monarchy. Often used when talking about the nation itself.
Literally 'king system', used for monarchies specifically headed by a king. Less common than 君主制.
Referring to the institution of the monarchy, including the monarch and their family.
The royal family or royal house. Commonly used in news and general conversation.
The royal family's event was broadcast on TV.
Specifically the Imperial household, used for Japan's monarchy. Not for foreign monarchies.
Royal family, often used for European monarchies. Can sound slightly more formal or historical.
Referring to the time during which a particular monarch rules.
君主制 refers to the political system, while 王室 refers to the royal family as an institution. Use 君主制 when discussing forms of government, and 王室 when talking about the family, their activities, or their public role.
Monarchy is not the same as empire (帝国, ていこく). A monarchy is a system with a monarch; an empire is a group of territories under a single supreme authority, often an emperor.
サウジアラビアは絶対君主国です。
Saudi Arabia is an absolute monarchy.
その国は王制を廃止した。
That country abolished the monarchy.
皇室の伝統は長い歴史があります。
The Imperial household's traditions have a long history.
Study the history of the British royal family.
The Emperor's reign exceeded 30 years.